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The Goertzel algorithm is an efficient digital signal processing algorithm used to detect the presence of specific frequencies within a signal. It is particularly useful when analyzing signals in applications like tone detection, DTMF (Dual-Tone Multi-Frequency) decoding, and other frequency-domain processes where only a few specific frequencies are of interest, rather than performing a full Fourier transform.

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  1. Digital signal processing
  2. Algorithms
  3. Applied mathematics
  4. Fields of mathematics
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